51.195.215.17📋 Copy

# IP Intelligence Briefing: 51.195.215.17/32

Classification: Moderate Risk / Hosting Infrastructure

Date: Current Analysis

Target: 51.195.215.17 (51.195.215.0/24 subnet)

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## Executive Summary

IP 51.195.215.17 is a moderate-risk (risk score 40/100) hosting infrastructure IP associated with OVH SAS (ASN 16276) in London, United Kingdom. The address resolves to proxy-uk009-san17.ahrefs.net, indicating use by Ahrefs Pte Ltd. While the IP itself shows no direct threat indicators, it operates within a high-abuse density subnet (0.8047 abuse density) where 206 of 256 sibling IPs are classified as threats. No services are currently exposed on this address (firewalled/no services detected).

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## Ownership & Infrastructure

The IP is registered to OVH hosting infrastructure with no evidence of cloud, CDN, VPN, or proxy operations. The control plane shows the IP is listed on 1 of 8 DNSBLs, with operator classification marked as "Minimal."

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## Threat Assessment

Direct Threat Indicators: None detected

• No known attacker flags
• No spam source classification
• Zero threat feed matches
• No known campaigns correlated

Risk Context: The IP's moderate risk score (40) is elevated relative to the subnet's overall risk profile. The 51.195.215.0/24 subnet shows 15 medium-risk neighbors and 0 high-risk neighbors among 100 sampled peers.

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## Observation History

Signal persistence analysis reveals:

• 20 historical observations tracked
• Recent activity observed 2026-06-28 (operator score 0.1, "Minimal")
• Previous classification 2026-06-20 confirmed OVH hosting with London geolocation
• No persistent malicious behavior flagged (threatPersistenceDays: 0)

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## Relationship Graph

44 relationships identified, primarily network-level associations with OVH infrastructure (OVH_282347345). No organizational or certificate-level correlations detected. The strong network association indicates legitimate hosting infrastructure rather than compromised endpoint.

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## Recommended Actions

SOC Analyst Recommendations:

1. Allow with Monitoring: No blocking recommended. The IP resolves to legitimate ahrefs.net infrastructure.

2. Network Context Review: Monitor traffic patterns given the high-abuse subnet environment (0.8047 abuse density). Unusual traffic volumes may warrant investigation.

3. DNSBL Monitoring: One DNSBL listing detected. Verify if listings are false positives or indicate specific policy violations.

4. Subnet Awareness: The 51.195.215.0/24 subnet contains 206 threat-classified siblings. Be aware that other addresses in this /24 may be malicious.

5. Firewall Rules: No immediate blocking rules recommended. Standard monitoring policies apply.

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Intelligence Confidence: Moderate

Data Sources: 2 geo sources, 8 DNSBL lists, 1 threat observation

Classification Flags: Hosting infrastructure, high-abuse neighborhood, minimal operator risk

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.